encased
I transport my firearms from home to the range or to the hunting site trigger locked and encased.
The long guns do not need to be locked, but I trigger lock them anyway.
The handguns need to be locked, and I double lock them, with the trigger lock, and inside a locked box/case.
When I get to the range, I carry them into the range locked, during a firing session and not during the ceasefire.
When I get to my hunting location, I unlock the long guns but keep them completely unloaded, although the law allows rounds to be in the magazine but not in the chamber of a long gun in a vehicle in a hunting location.
The only thing that has changed for long guns under the new law is that you cannot walk around town with them slung over your shoulder, something I have never done anyway and would never do. You can't ride around town in your pickup truck anymore with a long gun in a gun rack, which you used to could do before, even on your way to and from the range or the hunting area, but now you cannot.
To be transported in a vehicle, handguns have always needed to be locked, and no ammo touching them or connected to them in any way, since the 1960s, when the Black Panthers did their famous armed march on Sacramento when Reagan was governor.
It makes perfect sense to trigger lock all your firearms during transport, so that in case anyone gets hold of them, they cannot use them against you. Long guns included.
The CCCP California is not an open carry state. Nor is it a shall-issue state either.